AWSRekognitionUnindexedFace Class Reference

Inherits from AWSModel : AWSMTLModel
Declared in AWSRekognitionModel.h


A face that IndexFaces detected, but didn't index. Use the Reasons response attribute to determine why a face wasn't indexed.


The structure that contains attributes of a face that IndexFacesdetected, but didn't index.

@property (nonatomic, strong) AWSRekognitionFaceDetail *faceDetail

Declared In



An array of reasons that specify why a face wasn't indexed.

  • EXTREME_POSE - The face is at a pose that can't be detected. For example, the head is turned too far away from the camera.

  • EXCEEDS_MAX_FACES - The number of faces detected is already higher than that specified by the MaxFaces input parameter for IndexFaces.

  • LOW_BRIGHTNESS - The image is too dark.

  • LOW_SHARPNESS - The image is too blurry.

  • LOW_CONFIDENCE - The face was detected with a low confidence.

  • SMALL_BOUNDING_BOX - The bounding box around the face is too small.

@property (nonatomic, strong) NSArray<NSString*> *reasons

Declared In